Home / 10,721.63-14,788.95-7,732.73

Finding the Fourth Proportional to 10,721.63, 14,788.95 and 7,732.73

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Solution

The fourth proportional to 10,721.63, 14,788.95 and 7,732.73 is: 10,666.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.63 : 14,788.95 = 7,732.73 : x
  2. Step 2: Convert to fraction form
    10,721.63/14,788.95 = 7,732.73/x
  3. Step 3: Cross multiply
    10,721.63x = 14,788.95 × 7,732.73
  4. Step 4: Simplify right side
    10,721.63x = 114,358,957.33
  5. Step 5: Solve for x
    x = 114,358,957.33/10,721.63
  6. Step 6: Final answer
    x = 10,666.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.